baber/WOPTO huggingface dataset:
Patent GB-721890-A (GB)
Title: Improvements in and relating to time switches
IPC: G04F1/06
Filed: 1952-01-15
Abstract: 721,890. Actuation of switches. PARKER, R. H. Jan. 5, 1953 [Jan. 15, 1952]. No. 1144/52. Class 38 (5). [Also in Group XXIX]. The operation of a time switch is effected by the transfer of liquid from one compartment of a container to another compartment by capillary action, the transfer preferably causing the container to tip about a pivot axis. In one embodiment (Fig. 1, Provisional) the compartment A of a sealed container holds liquid to a level O and a wick W leads over a ridge F to a second compartment C. The container is pivoted about an axle D and a weight B is fitted to the container so that the time lag may be varied. The switch may be used to open the lid of an animal feeding- trough after a predetermined time (Fig. 2 Provisional), the axle D of the container being supported in brackets H on the lid I of the trough J. The lid is pivoted at V to a bracket E on the trough and the bracket also carries one arm of a toggle lever S, the other arm being pivoted to the lid e.g. to a bracket L which carries a pivoted weight K. In operation, when, after a predetermined time lag, the container A, C tips over, the bottom of the compartment C strikes a projection P on the weight K thus overbalancing it and causing it to turn in a clockwise direction. A projection R on the weight then strikes the free part of the toggle lever S and " breaks " the toggle so that the lid I is opened by a leaf-spring T. The opening of the lid causes the liquid now in compartment C to return to compartment A and also causes the weight K to turn back to its original position. Alternatively, the mechanism may be fitted within a box to open a separate lid and in this case the box must be tilted to re-set the switch. The stops (not shown) for the container A, C and the weight K to locate them in the " set " position may be located on a pendulum to allow the apparatus to be placed on an uneven surface. - In another similar form of switch mechanism for opening an animal feeding trough the container tilts to operate the opening mechanism as above and is then turned by the mechanism to its original operative position, the time lag being adjusted by means of a cam operated by a calibrated knob. Where the switch is not of the " tip over " type a float can be arranged in one or both compartments to trigger off a switch as it .falls or rises with the liquid level. The wick may consist of fine wires twisted together, or may be dispensed with and fine V-shaped grooves engraved or rolled on the wall separating one compartment from the other, and the liquid may be paraffin, carbon tetrachloride, mercury or a liquid silicone. The switch may also be used for opening and closing the doors of pigeon and poultry lofts, for operating electrical and mechanical delayed action switches, and for time bombs.
Patent GB-1466061-A (GB)
Title: Suspension and steering assemblies for motorcycles
IPC: B62K21/00
Filed: 1974-04-08
Abstract: 1466061 Motorcycle steering; wheel hubs R J TAIT 8 April 1974 [9 Jan 1973] 1180/73 Headings B7C and B7E A suspension and steering assembly for the steered wheel 14 of a motorcycle comprises a non-rotary substantially cylindrical hub member 21 on which the wheel 14 is rotatably mounted in use, a raked strut assembly 15 secured at one end to the member 21 and at the other end to a steering head bearing 39 for pivotally connecting the assembly 15 to the motorcycle frame 10, and a radius arm assembly 17 to which the member 21 is pivotally connected at a point radially spaced from the axis of the member 21 for pivotal movement of the assembly 15 and member 21 about an axis 18 spaced from the axis of the member 21 to steer the wheel 14. In the illustrated embodiment the hub member 21 is pivoted on a ball 26 at the head of a stud 27 secured to the crook of a wishbone structure providing a pair of radius arm 31, 32 pivotally connected in use to the frame 10 by pins 33. The stud 27 extends downwardly and rearwardly from the wishbone structure and a boss 23 of the hub member 21 contains opposed cups 24, 25 which receive the ball 26. The strut assembly 15 comprises a pair of sprung telescopic fork legs 36 fixed by screws 37 to the hub member 21 and received in a yoke 38 also mounting handlebars 16. The yoke 38 is secured by a bolt 41 to the inner race of the bearing 39, the outer race of which is attached to a coned rubber mounting 40 for receipt in a corresponding seating in the frame 10. The hub 20 of the front wheel 14 has a central portion to which inturned flanges 45 of radial brake discs 44 are secured. The flanges 45, together with shoulders provided on the member 21, form seatings for ball bearings 22 between the hub 20 and hub member 21. Housings containing friction pads to act on the discs 44 may be formed integrally with the legs 36, as shown in Fig. 1, or may be bolted to the legs 36 either to the front or the rear thereof (Fig. 6, not shown).
Patent GB-509316-A (GB)
Title: Improved multi-layer photographic film for colour photography
IPC: G03C1/95
Filed: 1938-01-13
Abstract: 509,316. Colour photography. I. G. FARBENINDUSTRIE AKT.-GES. Jan. 13, 1938, Nos. 1190 and 1191. Convention dates, Jan. 13, 1937, and Feb. 13, 1937. [Class 98 (ii)] Multilayer colour photographic material comprises silver halide emulsion layers of different colour sensitivities and preferably dyestuff components fast to diffusion arranged on one or both sides of a support, and, if desired, intermediate filter layers, and has a light-scattering surface other than the surface of a paper support behind the rearmost emulsion layer, the light-scattering properties of the surface remaining unchanged by photographic treating baths. The light-scattering surface may be produced by making the support turbid with agents such as insoluble oxides, sulphates, phosphates, and silicates, including aluminium oxide, titanium oxide, barium sulphate and calcium sulphate or by precipitating part of the colloid forming the support. Alternatively, a turbid intermediate layer may be placed between the support and the first emulsion layer, or where the emulsion layers are on both sides of the support a turbid back layer may be used. The light-scattering layer may be tinted, and may be used as an anti-halation layer, a non-curling layer or a light-sensitive layer for a black-and-white picture as described in Specification 492,648. This light-sensitive layer may, however, be a separate layer. Specifications 436,587, 458,400, 465,823, 479,838, 483,000, 484,698, 488,853, 489,093, 489,161, 489,164, 489,274 and 491,958 also are referred to.
Patent GB-881874-A (GB)
Title: Improvements in and relating to spectacle frames
Inventor: BERRIDGE WILLIAM HENRY
IPC: G02C5/22
Filed: 1959-01-13
Abstract: 881,874. Spectacle hinges. VERTEX (OPTICAL) Ltd. Dec. 30, 1959 [Jan. 13, 1959], No. 1218/59. Class 97(1). A spectacle frame made of thermoplastic material has parts 4, 5 connected by a metal hinge 1, 2 which has fast to or integral with it pins 3 of uniform diameter with keying notches 3<SP>2</SP>; the pins are entered into recesses formed in the parts 4, 5 with the application of heat so that the thermoplastic material flows into the notches and when cooled holds the pins in the frame parts.
Patent GB-113463-A (GB)
Title: Aerial Propellers.
Inventor: NOSWORTHY WILLIAM HENRY
IPC: B64C11/00
Filed: 1917-01-24
Abstract: 113,463. Nosworthy, W. H., and Prescott, S. J. Jan. 24, 1917. Screw propellers. - An aerial propeller is designed so that its revolution space figure approximates to a rotating knife which is thin or sharp at the edge or circumference, and which thickens gradually to the central part or boss D, this boss being of a length equal to the widest part of the blade B C on a line parallel with axis of rotation and of the small diameter required for aerial driving. The blades are joined to the boss along the full range of their greatest width, and may be shaped so that the revolution space figure is bevelled on one or both sides, and may he dished to give a trailing or facing element as desired. Specification 9045/15 is referred to
Patent GB-1534872-A (GB)
Title: Roof lights or ventilators
IPC: E04D3/08
Filed: 1975-11-25
Abstract: 1534872 Window framing PILLAR P G Ltd 25 Nov 1975 [11 Jan 1975] 1237/75 Heading E1J A roof light or ventilator has a fixed frame comprising a first pair of opposite side members with outwardly projecting flanges 21 for support by glazing bars 10, and a second pair of opposite side members (30, Fig. 3, 36, Fig. 4) for engaging adjacent glazing sheets (15, 17) and for support at their ends by the glazing bars. The sash frame has overlapping lips 25, and the fixed frame has a capping member (32) for weather sealing. At the corners of the main frame portions of the second pair of side members (30, 36) are cut away and shoulders (34, 38) rest on the glazing bars.
Patent GB-576278-A (GB)
Title: Improved method of and means for controlling the level of a liquid which is an electric conductor
IPC: G01F23/24
Filed: 1944-01-22
Abstract: 576,278. Automatic control systems. LONDEX, Ltd., and BESSON, A. P. Jan 22, 1944, No. 1242. [Class 38 (iv)] Fluid level.-In a liquid level control system an electromagnetic relay controlling a pump motor is associated with two similar conductive paths through the liquid which are so balanced that the relay is de-energised when both paths are closed but energised when one of them is open. A metal tube 5 replaces one of the customary water gauges of a steam boiler. When the liquid level is above electrode 2 the centre-tapped secondary of mains transformer 7 forms, with the conductive paths in the liquid between electrodes 2, 4 and 'the metal tube, a balanced circuit so that relay 12 is de-energised. Fall of liquid level below electrode 2, however, unbalances the circuit to energise relay 12, the contact 13 of which closes to establish a second balanced circuit involving the secondary of transformer 6, relay 14, and electrodes 1, 3. When the level falls below electrode 1 relay 14 energises to start feed pump motor 22 through relay 15. The opening by relay 15 of contact 16 in the second bridge circuit ensures that the pump continues to run until the level reaches electrode 2. Resistances 18 and 19 limit the currents if the resistance of the liquid becomes very low. Signal lamp 17 operates simultaneously with the pump motor. Should the pump fail, fall of level below electrode 3 is indicated by neon lamp 20 operated by the noload primary voltage of transformer 6. The following modifications are referred to :- (a) A single common electrode replacing electrodes 3 and 4. (b) A plurality of motors replacing motor 22. (c) Other sets of electrodes at different levels controlling different motors. (d) Electrodes 3 and 4 at different levels and associated with individual signalling devices.
Patent GB-538130-A (GB)
Title: A new or improved sheet metal forming machine
IPC: B21D5/04
Filed: 1940-01-20
Abstract: 538,130. Flanging. VICKERS-ARMSTRONGS, Ltd., and WESTBROOK, T. C. L. Jan. 20, 1940, No. 1248. [Class 83 (iv)] A sheet metal forming machine, particularly for flanging curved sheets or strips, comprises rollers or blades 6, 7, between which the sheet 10 is held and progressively fed, on angularly adjustable carriage 15 supporting a pneumatic hammer 14 or hydraulic former, and means for adjusting the carriage through an arc described about the forming centre so as to vary the line of action of the tool while the work is being fed through the holders. The adjustable block 7 is operated by a screw 9 against the action of a spring 8 &c. The table 11 is slotted at 12 for the passage of the pneumatic hammer 14 and carriage, the carriage having projections engaging curved guide grooves in members located beneath the table. The carriage has a toothed quadrant 16 and is angularly adjusted by a pinion connected by bevel gears to a hand operated shaft 21. The head 141 of the hammer is prevented 'from rotation and limited in its throw by an anchor guide 142 fixed to the member 143 and engaging a longitudinal groove 144 or projections on the head. The upper block 7 projects slightly beyond the lower block and the hammer is first positioned with the cut away portion 145 vertical so as to permit the head striking the part of the work immediately below the projecting lower edge of the block 7, which acts as an anvil. The work is fed by hand or mechanically past the hammer until its whole length is operated on. The hand wheel 25 is then adjusted so that the hammer moves in a direction nearer the horizontal and the process repeated. Finally the hammer is adjusted to a direction normal to the side face of the block 7 to complete the flange 101.
Patent GB-861365-A (GB)
Title: Improvements in or relating to heater compositions for use in the production of smokes and in the dispersal of control agents
IPC: C06D3/00
Filed: 1957-01-14
Abstract: A smoke generating composition for the dispersal of volatile control agents comprises a volatile control agent and a heater composition comprising thiourea, potassium chlorate, a mineral filler and an acid neutralizing agent, e.g. an alkali metal carbonate or bicarbonate, an alkali and earth metal oxide, hydroxide carbonate or bicarbonate or aluminium oxide or zinc oxide or hydroxide, present in an amount adapted to reduce decomposition of the thiourea in storage.  The composition may be contained in a canister having an outlet at one end.
Patent GB-1217542-A (GB)
Title: Improvements in or relating to methods and apparatus for conveying flowable solids from containers
Inventor: VOGT CLARENCE WEDEKIND
IPC: B65G53/46
Filed: 1968-01-10
Abstract: 1,217,542. Rotary pocket-wheel feeders. C. W. VOGT. 10 Jan., 1968, No. 1406/68. Heading B8A. Substantially the entire wall surface of each pocket of a pocket wheel feeder for discharging particulate material from a hopper vehicle is formed of gas permeable material and means are provided for providing suction through the gas permeable material when the pockets are in communication with the hopper and for providing gas under pressure to the gas permeable material when the pockets are adjacent the feeder outlet. The pocket wheel 17 comprises gas permeable members 20 removably secured to a tubular shaft 18 formed with apertures 32. The shaft 18 is rotatable on a stator 24 formed with recesses 26, 28, connected to vacuum and pressure sources, and with passages 50, 51, 52 leading to atmosphere.
Patent GB-805782-A (GB)
Title: Improvements in or relating to uranium alloys useful for the release of atomic energy
IPC: C22C43/00
Filed: 1947-01-15
Abstract: Corrosion resistant uranium alloys for use in producing atomic energy have a composition in per cent by weight in the following range: Si 0.5-10, U the remainder.  The alloys are made by heating a mixture of the constituents to an elevated temperature in an atmosphere of an inert gas.
Patent GB-843291-A (GB)
Title: A process for the production of hyposulphurous acid and salts and esters thereof
IPC: C07C381/00
Filed: 1958-01-15
Abstract: A hyposulphurous acid ester is produced by the reduction of a sulphurous acid ester with a metal borohydride in a solvent medium. Lithium, sodium, potassium, and calcium borohydrides are specified. Water and alcohol are specified as solvent media.  A sulphurous acid ester may be added to an alcoholic solution containing sodium borohydride and sodium hydroxide.  The hyposulphurous acid ester solution may be reacted with formaldehyde to yield a hydroxymethane sulphuric acid ester.ALSO:Hyposulphurous acid or a salt thereof is produced by the reduction of sulphurous acid or a salt thereof with a metal borohydride in a solvent medium.  Lithium, sodium, potassium, and calcium borohydrides are specified.  Water and alcohol are specified as solvent media Gaseous sulphur dioxide may be added to an alcohol solution containing sodium borohydride and sodium hydroxide; solid lithium borohydride may be added to an aqueous calcium bisulphite solution; and aqueous potassium borohydride solution, followed by aqueous sodium hydroxide solution, may be added to aqueous sodium bisulphite solution.  An example is given.
Patent GB-1189651-A (GB)
Title: Improvements in or relating to the Control of Air Delivered from a Heating or Cooling Duct.
Inventor: JOHNSON ARNOLD
IPC: F24F13/10
Filed: 1966-01-12
Abstract: 1,189,651. Flexible strip; engaging flanges. WARM AIR VENTILATING & ENG. Ltd. 11 April, 1967 [12 Jan., 1966], No. 1473/66. Heading E2F. [Also in Division F4] Hinges securing together adjacent louvre blades 4, 5 comprises in one embodiment a cylindrical sleeve 27 having an inturned portion (28 Fig. 8b not shown) at one end which engages arcuate portions 25 at the edges of the blades. One limit position being reached when the portions 25 abut. A second embodiment, Fig. 9b has a sleeve 30 with an inturned end 31 and a lever portion 32 with a slot 33 engaging the edge of a blade 5, a second part has an enlarged end 35 that snaps into the sleeve 30 and has a lever 34 with a slot 36 similarly engaging the edge of blade 4. In a third embodiment a folded polypropylene strip forms the hinge and is secured by tags pressed out of the blades.
Patent GB-523855-A (GB)
Title: Improvements in electrical discharge tube hair waving device
IPC: A45D4/12
Filed: 1939-01-16
Abstract: 523,855. Electric hair-waving. WHITMAN, S. C. Jan. 16, 1939, No. 1509. Convention date, Jan. 19, 1938. [Class 39 (iii)] [Also in Group XL] A gaseous electrical discharge tube 3 is provided with a clip 22 for retaining in position a lock of hair and used for curling or waving. Capacity elements 6 are mounted in sleeves 20, 21 and connected to internal electrodes 4, 5 ; they are arranged below a single capacity element connected to a highfrequency electric field. In a modification, the discharge tube is intended for use with low-frequency electric energy and fitted with a plug-in connection. Fig. 19 shows a gaseous discharge tube fitted with a filament 95 to carry a relatively heavy current.
Patent GB-473518-A (GB)
Title: Improvements in coke ovens
IPC: C10B21/10
Filed: 1937-01-19
Abstract: 473,518. Coke ovens. GROVES, W. W. (Otto & Co., Ges., Dr. C.) Jan. 19, 1937, No. 1589. Drawings to Specification. [Class 51 (ii)] In an underfired coke oven the rich gas ducts extending vertically through the silica brickwork of the regenerator structure, are built out of exact alignment with the gas pipe apertures in the concrete supporting platform for the oven to such an extent that the ducts and apertures will be brought into register when the oven attains its working temperature. To allow the pipes to be fixed in position before alignment has been attained, the apertures in the platforms or the lower ends of the gas ducts may be elongated transversely of the battery.
Patent GB-1355003-A (GB)
Title: Laminated sheet material
IPC: C09J7/20
Filed: 1972-01-13
Abstract: 1355003 Laminated adhesive labels ZELLWEGER Ltd 13 Jan 1972 [15 Feb 1971] 1652/72 Heading B5N [Also in Division B2] A material for the production of electrostatically-printed labels comprises (a) an electrically-conductive paper sheet covered on one side by (b) a layer of electrostatically-chargeable material and on the other side by (c) a layer of adhesive which may be protected by (d) a release film. The paper (a) may be rendered conductive by impregnation with cationic polymers and/or salts and may incorporate electrically-inert polymers, e.g. polyvinyl acetate, polyvinyl alcohol, for protection against solvents from (b). The chargeable material (b) may be applied as a solution and may comprise an insulating (meth)acrylic polymer or copolymer, a pigment, e.g. ZnS, BaSO 4 , polyacrylonitrile, and an additive to improve insulating properties, e.g. styrene or a derivative thereof. The adhesive (c) may be an insulating vinyl ester copolymer or (meth)acrylic copolymer. The release film (d) may be an insulating siliconized film. Labels may be electrostatically printed on a prepunched strip of the material before the film (d) is removed.
Patent GB-1453142-A (GB)
Title: Continuous process for the production of maleamic acids
IPC: B29B7/48
Filed: 1974-01-14
Abstract: 1453142 Maleamic acids RHONE-POULENC SA 14 Jan 1974 [16 Jan 1973] 01704/74 Heading C2C A continuous process for the preparation of a maleamic acid of the formula in which: R represents an alkylene, arylene, aralkylene, alkylarylene or cycloalkylene radical or a divalent heterocyclic radical the free valencies of which are attached to carbon atoms, the radical containing 2 to 20 carbon atoms and X represents either a hydrogen atom of the radical comprises passing a solution of a primary monoamine or diamine and a solution of maleic anhydride in amounts such that there is a 5 to 20 mol. per cent excess of anhydride, at a temperature of from 40‹ to 130‹ C. and at a rate greater than 7 m/second through an injection nozzle into a twin screw reactor, the solvent for the primary amine being the same as, or compatible with, the solvent for the maleic anhydride. In the examples the amine is 4,4<SP>1</SP>- diamino-diphenylmethane.
Patent GB-547880-A (GB)
Title: Improvements in or relating to the manufacture of glass tubes
IPC: C03B17/04
Filed: 1941-02-08
Abstract: 547,880. Making glass tubes. EVERETT, S. J. Feb. 8, 1941, Nos. 1713 and 13292. [Class 56] A method of forming a glass tube with accurately shaped internal or external surfaces consists in drawing an initially cold tube over or through a former while heating the tube only in the vicinity of the former. The glass tube 1, Fig. 1, may be held between chucks 2, 3, which are movable independently along guides 4, 5, respectively, to carry the tube through a furnace 6. A former 7 is supported within the tube by a rod 8 which is slidable through the chuck 2 and is rotated by a motor 19. A suction pump 18 driven by the motor is connected to the interior of the tube 1. In operation, the tube is heated by the furnace until the glass is plastic and is caused by the exhaustion of the air from its interior to contract and conform to the former 7. Heating is started at the end of the tube near the chuck 3, and the chucks are moved along their guides by a motor 29, so that the heating and contracting proceed continuously along the length of the tube. The chuck 3 is moved at a slightly greater speed than the chuck 2 to allow for the extension of the tube as it passes through the furnace. The former 7 may be made of silica or stainless steel, and the bore of the tube may be coated with colloidal graphite to serve as a lubricant. The rotation of the former ensures that the inner surface of the finished tube shall be accurately cylindrical and smooth and to be suitable, therefore, for making hypodermic syringes. If tubing of accurate external diameter is required, the former surrounds the tube and the heated glass is expanded by compressed gas. The former is not rotated when a finished tube of non-circular cross section is required. The method may be used for shaping tubing as it is formed by the process in which a ribbon of molten glass 51, Fig. 4, flows on to a rotating inclined mandrel 53 and is drawn off from the lower end of the mandrel by suitable drawing- apparatus 54. The former 55 is inserted in the tube 50 through an axial bore 58 in the mandrel. and is rotated by a flexible driving element 57.